Massimiliano Allegri knows him all too well. Indeed, in his final match in charge of AC Milan, the Juventus coach looked on helplessly as Domenico Berardi tore apart his ailing Rossoneri, netting four times in a memorable January 2014 win for Sassuolo.
In the days after that stunning 4-3 defeat for the stumbling San Siro giants, Clarence Seedorf replaced Allegri and a star was born. The young winger has continued to perform incredibly for the Neroverdi, but even then he was already co-owned by Juventus, the Italian champions buying half his contract as long ago as September 2013.